Pink salmon (Oncorhynchus gorbuscha), spawning season, Prince William Sound, Alaska, United States of America, North America

Pink salmon (Oncorhynchus gorbuscha), spawning season, Port Valdez, Alaska, United States of America, North America

Dead and dying pink salmon (Oncorhynchus gorbuscha) gathering after the spawn just outside of Sitka, Alaska, United States of America

Leaping pink salmon (Oncorhynchus gorbuscha) gathering to spawn at Lake Eva on Chichagof Island, Alaska, United States of America, North America

Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

Dead and dying pink salmon (Oncorhynchus gorbuscha) gathering to spawn just outside of Sitka, Southeast Alaska, United States of America, North America

Moor frog (Rana arvalis) male, blue coloured during mating season, with spawn in spawning waters, Thuringia, Germany, Europe

Moor frogs (Rana arvalis), two males, blue coloured during mating season, with spawn in spawning waters, Thuringia, Germany, Europe

Toad in Biotope, Bufo bufo, Munich, Bavaria, Germany